Roman Catholic Diocese of Bunbury

The Diocese of Bunbury is a Latin Church ecclesiastical jurisdiction or diocese of the Catholic Church in Australia. It is a suffragan in the ecclesiastical province of the metropolitan Archdiocese of Perth. The Diocese of Bunbury was established in 1954, and covers the South West and Great Southern regions of Western Australia.

Ordinaries
The following men have been Bishop of Bunbury:
 * {| class="wikitable"

!Order !Name !Date enthroned !Reign ended !Term of office !Reason for term end
 * align="center"| ||Lancelot Goody † ||align="center"|12 November 1954 ||align="center"|18 October 1968 ||align="right"|13 years, 344 days ||Elevated as Archbishop of Perth
 * align="center"| ||Myles McKeon † ||align="center"|6 March 1969 ||align="center"|18 February 1982 ||align="right"|12 years, 352 days ||Resigned and appointed Bishop Emeritus of Bunbury
 * align="center"| ||Peter Quinn † ||align="center"|26 May 1982 ||align="center"|20 December 2000 ||align="right"|18 years, 212 days ||Resigned and appointed Bishop Emeritus of Bunbury
 * align="center"| ||Gerard Joseph Holohan ||align="center"| 5 September 2001 ||align="center"|30 June 2023 || align="right" ||| Resigned and appointed Bishop Emeritus of Bunbury
 * }
 * align="center"| ||Peter Quinn † ||align="center"|26 May 1982 ||align="center"|20 December 2000 ||align="right"|18 years, 212 days ||Resigned and appointed Bishop Emeritus of Bunbury
 * align="center"| ||Gerard Joseph Holohan ||align="center"| 5 September 2001 ||align="center"|30 June 2023 || align="right" ||| Resigned and appointed Bishop Emeritus of Bunbury
 * }
 * }

Parishes
The diocese is divided into three separate deaneries that administer individual parishes:
 * 1) Great Southern deanery with regular liturgical services held in the parishes of Albany (St Joseph), Denmark (St Mary), Esperance (Star of the Sea), Katanning (St Patrick), Kojonup (St Bernard), Lake Grace (Maria Regina), Mount Barker (Sacred Heart), Narrogin (St Matthew), and Wagin (St Joseph)
 * 2) Lower South West deanery with regular liturgical services held in the parishes of Boyup Brook (St Mary), Bridgetown (St Brigid), Busselton (St Joseph and Our Lady of the Bay), Donnybrook (St Mary), Dunsborough (Our Lady of the Southern Cross), Manjimup (St Joseph), Margaret River (St Thomas More), and Pemberton (Sacred Heart)
 * 3) South West deanery with regular liturgical services held in the parishes of Bunbury (Cathedral Parish of St Patrick), Brunswick Junction (Our Lady's Assumption), Collie (St Brigid), Dardanup (The Immaculate Conception), Dawesville (St Damien), Harvey (Our Lady of Immaculate Conception), Australind (Church of the Living Vine), Mandurah (Our Lady's Assumption), Pinjarra (St Augustine), and Waroona (St Patrick)

Controversy
In 2003 Adrian Richard Van Klooster, a Catholic priest, pleaded guilty to four counts of indecently dealing with children under the age of 13 and was found with child pornography on his computer.